In Star Wars, we see many space battles and there are many missed shots.

[![enter image description here][1]][1]

  [1]: https://i.sstatic.net/JEhVn.jpg

**What happens to the lasers when they fly off into space?**
Do they eventually just fizzle out, or do they continue on forever?
You would think that occasionally, something gets hit by a stray laser thousands of miles away.